Avoid leaks, odors, and costly damage with a few simple checks
RV plumbing may not be glamorous, but when something goes wrong, you feel it fast. From leaky pipes to smelly tanks, small issues can escalate quickly if left unchecked. And because RVs are always on the move, the wear and tear on your plumbing system is very different from what you’d find in a house.
Here’s why routine plumbing maintenance matters for every RV owner — and what Murphy Mobile RV Repair looks for during every inspection across Orange County.
1. Small Leaks Lead to Major Damage
A slow drip under a sink or behind a wall might seem harmless, but in an RV, even a small leak can soak cabinetry, insulation, and flooring within days, especially during travel.
What we check:
- Tightness of PEX and SharkBite connections
- Cracks in fittings and elbows (especially after long hauls)
- Evidence of previous water staining or soft spots
- Water heater seals and pressure relief valve
- Under-sink fittings and pump connections
Pro Tip: If you hear your water pump cycling when no faucets are open, you probably have a leak.
2. Your Black Tank Needs More Than Just Dumping
Proper black tank care isn’t just about emptying it — it’s about preventing clogs, sensor issues, and odors.
What we recommend:
- Use a black tank rinse or a built-in flush system regularly
- Add tank treatment with enzymes to break down solids
- Fully flush with fresh water every few dumps
- Avoid harsh chemicals that can destroy seals or sensors
- Keep valves closed until tanks are 2/3 full to ensure proper flow
Avoid leaving your black tank valve open at campsites — it leads to the dreaded “pyramid of poop.”
Your Water Pump Works Hard — Give It Some Love
Your water pump runs every time you use water off-grid, and when it fails, you lose access to your sinks, shower, and toilet.
Maintenance tips:
- Check for unusual noise or vibration
- Inspect the strainer screen for debris buildup
- Ensure it’s secured tightly to reduce wear
- Look for small leaks around the fittings
- Replace it before it dies if it’s running weak or short-cycling
We carry common pump replacements and can swap one out quickly on-site if needed.
Water Heater Safety and Performance Checks
A neglected RV water heater can become unsafe or stop heating properly.
Regular maintenance includes:
- Draining and flushing the tank (especially if stored long-term)
- Inspecting the anode rod (if equipped)
- Testing the pressure relief valve
- Cleaning the burner assembly and checking for insect nests
- Checking the thermal couple and ignition system
If your water smells like sulfur or is slow to heat, it’s time for a cleaning.
Don’t Forget Your Fresh Water System
Even if you don’t drink from your fresh tank, it still needs regular attention.
Maintenance checklist:
- Flush the tank before and after trips
- Sanitize the system with diluted bleach at least twice per year
- Replace old or cracked hoses
- Check for buildup in strainers and faucet heads
- Use a pressure regulator at hookups to avoid blowing fittings
Ask about our fresh water flush + system check if it’s been a while.
Book Mobile Plumbing Maintenance in Orange County
At Murphy Mobile RV Repair, we come to you — whether your RV is at home, in storage, or at a campground. From routine checks to full diagnostics, we help RV owners prevent big plumbing problems with quick, effective service.
Call (714) 450-5086 or schedule your RV plumbing checkup today.